Holds 6 each 1/4″, 3/8″ and 1/2″ chrome extensions, with the shaft supports included. Base magnets hold it to the drawer, and side magnets connect it to your other MagAttach holders.
MagAttach Extension Tray (Starter Set)
$49.99
- Base magnets hold it in the drawer
- Snaps to other MagAttach pieces
- Made in the U.S.A.
Add room for more extensions, or do the ratchets too.
MagAttach Extension 2 Piece Expansion TraysFrom $11.95Pick your color →
MagAttach Ratchet Holders (Starter Set)$19.99Pick your color →A dual magnet grip that won’t let go
Strong base magnets
Recessed neodymium magnets in the base clamp each piece to your steel toolbox drawer. Slam it shut, roll the box, nothing shifts.
Integrated side magnets
Every MagAttach piece snaps to the next one, so rows stay tight and evenly spaced. Add, remove or rearrange in seconds.
Cradle fit pockets
Pockets are shaped to the tool so it drops in fast and sits square. No rattling, no digging.

Built to keep your box dialed in
Locks to the drawer
Base magnets hold fast to steel, so tools stay put every time the drawer moves.
Snaps together
Side magnets link piece to piece into one solid row you can rearrange anytime.
Cradles each tool
Contoured pockets fit the tool for a fast, square drop in with no rattle.
U.S. made & tough
Printed from durable, rigid material in our American shop and inspected batch by batch, by hand.
Description
Introducing our lineup of extension organizers!
The starter set includes the larger “head” side to fit the drive side of (6) chrome extensions of each size (1/4″, 3/8″ and 1/2″) as well as the required shaft supports.
Our MagAttach holders feature magnets on each side to interconnect with our full line of MagAttach magnetic interconnecting holders. We have also put magnets in the base to prevent them from sliding around when drawers are opened and closed. Each extension holder support also features two base magnets.
Dimensions/Fit:
Our extension organizers are designed to fit 90% of chrome extensions on the market. To ensure they fit yours please review the dimensions in the image below:
Notes:
*3D printed parts do vary slightly from piece to piece.
** Tools shown in images are NOT included. This is for the tray ONLY.
Additional information
| Color | Black/Black, Blue/Black, Custom/Black, Gray/Black, Green/Black, Orange/Black, Pink/Black, Purple/Black, Red/Black, White/Black, Yellow/Black |
|---|---|
| Drive Size | 1/4", 3/8" & 1/2" |
| For Tool Brand | Universal |
| Material | 3D Printed PLA |
| Product Series | MagAttach |
Do you have a question?
Drop us a line by compiling the form below. We will be more than happy to reply to any of your questions!
Your drawer, your colors
Every piece is two tone, your accent color paired with black. Run one color across the whole drawer, or color code by drive size and set.
Pick your color above. Options vary by product.
A smarter hold than foam or plastic rails
| MagAttach | Foam cutouts | Universal rails | |
|---|---|---|---|
| Magnetically locks to the drawer | ✓ | — | — |
| Holders snap together & rearrange | ✓ | — | Limited |
| Contoured to the tool | ✓ | Sometimes | — |
| Add or reconfigure anytime | ✓ | — | Limited |
| Proudly made in the U.S.A. | ✓ | — | — |
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From our shop to your toolbox
3D Tool Trays is a small American business building the organizers we want in our own boxes. Give every tool a home that holds.









